code: def test_bind_key_default(db: SQLAlchemy) -> None:
      class User(db.Model):
          id = sa.Column(sa.Integer, primary_key=True)
  
      assert User.metadata is db.metadata
  
file_path: flask-sqlalchemy/tests/test_model_bind.py
imports: from __future__ import annotations
  import sqlalchemy
  from flask_sqlalchemy import SQLAlchemy
label_desc: Use image node_id 1 for calling a global function with example usage: test_bind_key_default(db) without return types